USB type-c details
Developed at roughly the same time as the USB 3.1 specification, but distinct from it, the USB Type-C Specification 1.0 defines a new small reversible-plug connector for USB devices. The Type-C plug connects to both hosts and devices, replacing various Type-B and Type-A connectors and cables with a standard meant to be future-proof, similar to Apple Lightning and Thunderbolt. The 24-pin double-sided connector provides four power/ground pairs, two differential pairs for USB 2.0 data bus (though only one pair is implemented in a Type-C cable), four pairs for high-speed data bus, two sideband use pins, and two configuration pins for cable orientation detection, dedicated biphase mark code (BMC) configuration data channel, and VCONN +5 V power for active cables. Type-A and Type-B adaptors and cables will be required for older devices in order to plug into Type-C hosts; adaptors and cables with a Type-C receptacle are not allowed.
USB type-C pinout
|Description||Signal A||Pin||Pin||Signal B||Description|
|SuperSpeed differential pair 1 TX, positive||TX1+||A2||B11||RX1+||SuperSpeed differential pair 1 RX, positive|
|SuperSpeed differential pair 1 TX, negative||TX1-||A3||B10||RX1-||SuperSpeed differential pair 1 RX, negative|
|Bus Power||VBUS||A4||B9||VBUS||Bus Power|
|Configuration channel||CC1||A5||B8||SBU2||Sideband use|
|USB 2.0 differential pair, position 1, positive||D1+||A6||B7||D2-||USB 2.0 differential pair, position 2, negative|
|USB 2.0 differential pair, position 1, negative||D1-||A7||B6||D2+||USB 2.0 differential pair, position 2, positive|
|Sideband use||SBU1||A8||B5||CC2||Configuration channel|
|Bus Power||VBUS||A9||B4||VBUS||Bus Power|
|SuperSpeed differential pair 2 RX, negative||RX2-||A10||B3||TX2-||SuperSpeed differential pair 2 TX, negative|
|SuperSpeed differential pair 2 RX, positive||RX2+||A11||B2||TX2+||SuperSpeed differential pair 2 TX, positive|
Pins A2,A3,A10,A11,B2,B3,B10,B11 are not used with USB 2.0-only devices.
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See also USB type C full-featured cable.